Composition for improving hair health

ABSTRACT

A composition comprising two peptides with a size of 11 and 12 amino acids, wherein 2-3 of said amino acids are cysteines and a suitable dermatology excipient, which can be used for treatment and grooming products for animal hair, preferably for treatment and cosmetics for human hair.

TECHNICAL FIELD

The present application relates to compositions comprising for use intreatment and cosmetics for animal, preferably human hair.

BACKGROUND OF THE INVENTION

The hair has a significant social role in most of the various worldcultures, especially for the female population. Thus, there is aconstant desire to improve and change the hair characteristics, such asits natural texture.

There are several differences in hair characteristics among differentraces of mankind, as well as between individuals of the same race, suchas length, thickness, color and texture.

Hair is composed of approximately 65% to 95% protein. The remainingconstituents include water, lipids, pigments and trace elements. Most ofthe proteins that make up hair corresponds to keratin andkeratin-associated proteins.

The structure of human hair fibers consists of the cuticle, cortex andmedulla. The cuticle consists of overlapping layers of cells, similar toa system of scales, which comprises high content of cysteine andproviding a protective character to the hair fiber. It constitutes about15% of the hair weight. The hair cortex is the intermediate region, isresponsible for the strength, elasticity and hair color. It consists ofmany cell types and represents about 80% of the hair weight. The cordcorresponds to a central beam cells do not exist in all types of hair.

The keratins and especially keratin-associated proteins have high sulfurcontent which is present in the amino acid cysteine. The presence ofsulfur is essential for hair structure, since it allows the formation ofdisulfide bonds between polypeptide chain of amino acids, due tooxidation of cysteine residues. The existence of these bonds is largelyresponsible for the structure and hair texture.

There are several methods available to style the hair involving breakingand restoration of new disulfide bridges, allowing relaxation andstraightening hair. However, the methods currently alter moreeffectively use harmful chemicals such as sodium hydroxide, potassiumhydroxide, lithium hydroxide, guanidine hydroxide, ammoniumthioglycolate or sodium sulfate. These methods can damage the scalp andthe hair fiber cuticle in both the cortex and leading to its weakeningand lowering its tensile strength. Formaldehyde is also used in productsfor hair straightening, being, however, extremely toxic. Other hairtreatments that do not involve as much damage to the hair and theconsumer are usually very expensive and time-consuming or loweffectiveness. Thus there is a constant demand for formulations to modelefficiently without damaging the hair fiber.

As indicated above, hair is a complex structure and is comprised ofthin, overlapping cuticle cells that protect its inner core, known asthe cortex. The cuticle cells are mechanically tough and very resistantto environmental insults, and to the penetration of foreign molecules,due to the high degree of isodipeptide and disulfide bonds present inits various lamellar layers. The cortex, which constitutes most of thefiber mass, contains spindle-shaped cortical cells filled withmacrofibrils (higher ordered structures of alpha-keratin proteins)embedded in an amorphous protein matrix (primarily comprised of keratinassociated proteins). A cell membrane complex joins cuticle cells withother cuticle cells, cortical cells with other cortical cells, andcuticle and cortical cells.

Treating hair with peptides presents two challenges. The first is thesuccessful penetration of the peptide into the hair cortex. This is notan easy endeavor, especially in virgin, undamaged hair. It should benoted that molecular size and polarity play a large role in determiningthe ability of a molecule to gain access to the interior of the fiberstructure. Also, damaged hair is more permeable than undamaged hair.More than likely this is due to the increased porosity of damaged hair,especially hair that has undergone chemical treatments. 2)Oncepenetration has been achieved, the second challenge is understanding howthe peptides influence the physicochemical properties of the fiber. Wenow have several studies demonstrating the ability of low molecularweight peptides to gain access to the cortex of damaged hair andincrease its mechanical properties.3-6 Improving mechanical strength ishighly desirable in hair that has undergone chemical orthermo-mechanical treatments in which case its structural integritybecomes compromised.

Peptides, proteins, and amino acid derivatives have also been used incompositions for personal care products in particular hair for itsconditioning and strengthening. For example, WO2000023039A2 discloses acomposition for hair treatment containing intermediate filamentproteins, particularly keratin artificial. EP 0488242 discloses an agentfor hair treatment containing 3% to 10% amino acid weight cysteine orsalts thereof and a saccharide or polyhydric alcohol containing four totwenty carbon atoms, three or more hydroxyl groups in the molecule andany aldehyde or ketone group. WO2015056216A2 used peptides with a sizeof 6-12 amino acids, wherein 2-5 of said amino acids are cysteines,which can be used for cosmetics treatments for human hair. This patentshow that these small peptides can penetrate the hair and improvemechanical resistance from within by interacting with hair keratin.

WO 00/51556 discloses a hair treatment composition that contains four ormore discrete molecules of different amino acids selected fromhistidine, lysine, methionine, tyrosine, tryptophan or cysteine. Thisdocument describes peptides without reference sequence and a compositionbased essentially on histidine, lysine, methionine, tyrosine, tryptophanor cysteine.

The GB 103 484 discloses a formulation for cosmetic applications whichutilize hydrophobic binding domains and/or carbohydrates, in order toenhance its properties and to repair hair damage and have been used asbinding domain milk protein hydrolyzate, a model of human surfactantprotein as well as biologically active and some synthetic peptides. Thepresent invention is distinguished by the innovative use of analogoussynthetic peptide sequences to keratin proteins instead of surfaceactive proteins of the lung or is based on hydrophobic binding domainsand/or carbohydrates, but in other types of interactions, namelydisulfide bridges.

Enzymes have also been used as activating agents for hair treatments,such as in WO2012013593A1 discloses a cosmetic kit for conformationalchanges that specifically acts hair keratin in hair, especially indisulfide bonds, wherein the formulation has enzyme activating agentsand proteolytic enzymes.

As described earlier in the document's hair treatments involvingperformances in terms of disulfide bonds of the hair, of which wehighlight a few.

WO1997011672A1 describes a permanent hair processing method that usesphosphine tris (2-carboxyethyl) (TCEP) and other water soluble tertiaryphosphines to break the disulfide bonds, whose reaction takes place inan acidic medium. U.S. Pat. No. 5,635,170 discloses a composition forpermanent shaping of hair based WO2000064405A2 on a keratin reducingagent which contains N-glycyl-L-cysteine and/or L-cysteinyl-glycine.This composition is in the range of pH of 6.5 to 9.0. WO2008081348A2discloses a method and composition for permanent hair shaping, by use of1% to 30% N-alkyl-2-mercaptoacetamide as a keratin reducing and at leastone cationic surfactant for permanently shaping hair and the resultingprocess. WO2006001536A1 describes an agent for permanent hair processingcontaining a mercaptocarboxylic acid derivative, which allows processingand reduction of hair keratin in a pH region of neutral to acidic.US20100272666A1 discloses a hair cosmetic composition for hairtreatment, wherein the number of amino acids of the peptide is 5 to 50,but contains no cysteine residues and amino acid derivative. Thus, thisinvention is distinguished by the existence of specific amino acidsequences containing cysteine, allowing the formation of disulfide bondswhich stabilize and protect the hair fiber.

In a previous article Fernandes et al. (Fernandes Lima, Laurel, Gomes,Paulo & Babble-2012) is made toxicological assessment of a peptidesequence with treatments for hair not described containing 13 aminoacids with two cysteines in its composition. In this article it is notmentioned or suggested that the percentage of cysteine in a peptidesequence may have some effect on hair strength, and that the presentinnovation the number of amino acids in each peptide sequence is 6 to12.

A recent study by researchers at the University of Minho in March 2017(PhD Thesis from Celia Freitas Da Cruz, Unravelling and modulating humanhair morphology features) brought to light a mechanistic understandingof how peptides could interact and fortify endogenous hair proteins. Intheir investigations, they examined the influence of isoelectric point,charge, and amino acid side chain functionality on the bindinginteractions of the screened peptides with hair proteins. The arrayanalysis suggested that designing peptides with small molecular weightsand high affinity to human hair keratin would have a good probability tointeract and reinforce keratin properties when supported by surfactantagents that can help increase the penetration of peptides into thecortex.

SUMMARY OF THE INVENTION

Accordingly the present invention is a peptide composition for treatinghair, comprising: at least one peptide having an 11-12 amino acid size,the full size of the peptide sequence, including 2-3 cysteine aminoacids; and at least one excipient suitable for dermatology use.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a graph showing the binding affinity of keratin to Aquispeptide 1.

FIG. 2 is a graph showing the binding affinity of keratin to Aquispeptide 2.

FIG. 3 is a graph showing the binding affinity of keratin to Aquispeptide 3.

BEST MODE FOR CARRYING OUT THE INVENTION

The present invention is distinguished by the use of peptides that canpenetrate inside the human hair fiber to improve its strength andhydrophobicity and have more affinity to hair keratin compared topreviously developed peptides.

The present invention is directed to novel peptide designs having thefollowing characteristics:

-   -   1. Low molecular weight to penetrate the core of the hair strand    -   2. Affinity and ability to interact with keratin    -   3. Hydrophobic    -   4. Works from the inside out to protect hair from water damage.

The sequence includes the following characteristics:

1. Contain a Cysteine—which will naturally form disulfide bonds withother free cysteine in the hair/keratins

2. Contain some hydrophobic residues and/or fatty acid labels for addedhydrophobicity

3. Will be a length of 5-10 amino acids in length, to keep MW low withsome Polar and/or Basic amino acids

Based on analysis of the Keratin-associated protein 1-1 (KRTAP1-1).Given the different parameters, we wanted to ensure they incorporate allthe best traits, including multiple cysteines which will bind to thefree Keratins in the natural human hair. At first we thought a singlecysteine would be good, but the evidence seems to indicate that multiplecysteines in a sequence, without disulfide bonds, may be the best, asthey are then free to interact with the other free cysteines naturallyoccurring in the hair/keratins. They should all be 10-12 amino acidslong. We were also looking deeper to see if one sequence should betested with a Palmitoyl on the N-terminus, which may be furtherbeneficial with scalp skin uptake of the peptide, although it's notnecessarily needed due to the use of other hydrophobic residues. What itallows is for a less hydrophobic peptide sequence to be used, and stilloffer the same properties but easier to synthesize.

The following sequences have been designed in this invention:

1. ASCCRPSYCG (N-term) 2. FCGFPSCSTSG (non-repetitive domain)3. CTPPSCCQLHHA (repetitive II domain)4. Palmitoyl-ASCCRPSYCG (Pal N-term)For the 4th one above a Palmitoyl group is added to the N-terminus toincrease the hydrophobicity.

The Palmiotyl group on the N-terminus would be beneficial for thepeptide to get into the scalp and follicle for improved protection (notgrowth), while the others are designed to bind to the external hairitself to provide the hydration and protection desired for a haircareproduct.

Carrying out the invention involves the following: Synthesize thesequences, and then see if any of them are overly difficult due to theextreme hydrophobic or multiple cysteine content. Also which sequencesare more difficult and which ones will lend themselves better to larger,commercialization production scales.

Thus, the present invention aims to provide a composition for thetreatment of the animal, including human hair, without the use ofharmful chemicals to the hair fiber and consumer health in general anddoes not present the drawbacks found in the art.

The compositions described in this invention provide prolonged use hairwith smooth texture, glossy, undamaged and with the desiredcharacteristics and stronger. The peptide compositions with a number ofspecific amino acids and cysteine, act synergistically giving strength,toughness and elasticity to the hair. Thus, the compositions of thepresent invention are particularly relevant for treating the hair,coloring, permanent, etc.

The present application describes two peptides composition for thetreatment or hair, in particular human or animal, comprising 11-12 aminoacid size, wherein 2-3 of these cysteines are amino acids,dermatologically suitable excipients which penetrates the hair/by,increasing hair/resistance by decreasing and the hair breaks/by.

In one embodiment, improved results for the peptide (or peptides) of thepeptide to the hair treatment composition may comprise between 11-12amino acids, with the following sequences:

TABLE 1 Sequence Name AA FCGFPSCSTSG Aquis Pep1 11 CTPPSCCOLHHAAquis Pep2 12In yet another embodiment, the amount of cysteine of the peptidecomposition for hair treatment can range from 18% to 25% of the totalamino acids of the peptide sequence

In one embodiment, improved results for the peptide (or peptides) of thepeptide to the hair treatment composition may comprise at least onesequence the following list having a degree of homology greater than orequal to 90%: Aquis Pep1 and Aquis Pep2, preferably with a degree ofhomology greater than or equal to 91%, 92%, 93%, 94%, 95%, 96%, 97%,98%, 99%, 100%.

In one embodiment, the peptide concentration of peptide composition forhair treatment can vary between 0.001% to 20% (w/w), preferably 0.01-5%(W/W).

In another embodiment, the peptide composition for hair treatment mayfurther comprise at least one selected carrier in the following list:surfactants, emulsifiers, preservatives, thickeners, organic polymers,humectants, silicones, oils, fragrances, vitamins, buffers.

In yet another embodiment, the peptide composition for hair treatmentmay comprise at least one anionic surfactant selected from the followinglist: alkyl benzene sulfonates, ammonium lauryl sulfate, ammonium xylenesulfonate, sodium C14-16 olefin sulfonate, cocoyl sarcosinate sodium,sodium laureth sulfate, sodium lauryl sulfate, sodium laurylsulfoacetate, sodium myreth sulfate, xylene sulfonate, sodiumdodecylbenzene sulfonate, TEA, ethyl PEG-15 cocamine sulfate,dioctylsulfosuccinate and sodium) or mixtures thereof.

In one embodiment, the peptide composition for hair treatment maycomprise at least one selected amphoteric surfactant from the followinglist: cocamidopropyl betaine, coco betaine, cocamphoacetate,cocanfodipropionato, disodium cocamphodiacetate, lauro ampho acetatecocoyl isethionate sodium or mixtures thereof.

In another embodiment, the peptide composition for hair treatment maycomprise at least one cationic surfactant selected from the followinglist: quaternary ammonium compounds, berrentrimónio chloride,methosulfate berrentrimónio, benzalkonium chloride, cetrimoniumchloride, cinamidopropiltrimónio, cocotrimonium chloride, dicetildimóniochloride, dicocodimónio chloride, dihydrogen tallow dimethyl ammoniumchloride, hydrogenated triethylammonium chloride, dodecyl chloride(trimethyl) ammonium chloride, Quaternium-15 bentonite Quaternium-18,hectonita of Quaternium-22 dimetilbenziloctadecilamónio of chloride,tallow trimonium chloride, tricetildimónio chloride, or mixturesthereof.

In yet another embodiment, the peptide composition for hair treatmentmay comprise at least one nonionic surfactant selected from thefollowing list: decyl glucoside, laureth-10, laureth-23, laureth-4,PEG-10 laurate sorbitan, polysorbate (20, 21, 40, 60, 61, 65, 80, 81),PPG-1-6 tridecete, sorbitol, estearato-(2, 10, 15, 20) CII-21Pareth-(number between 3 and 30), PEG-20 C12 8 acid ester, or mixturesthereof.

In one embodiment, the peptide composition for hair treatment maycomprise at least one emulsifier selected from the following list:succinate caprylic, capric, digliceril CIO-15 Pareth-(2,4,6,8),phosphate, -16 C14 glycol palmitate, glycol C18-20 isostearate,Ceteareth-(4-60), cocamidopropyl lauryl ether, Deceth-(3-10)DIPA-hydrogenated cocoate, dipentaeritritil hydroxystearate,dipentaeritritil hidroxisoestearato, dipentaeritritilhexacaprato/caprylate, dodoxinol-(5, 6, 7, 9, 12), nonoxynol (I-35)octoxinol-(I-70) octildodeceth-(2, 5, 16, 20, 25) Palm Kernelglycerides, or mixtures thereof.

In another embodiment, the peptide composition for hair treatment maycomprise at least one selected preservative from the following list:butylparaben, diazolidinyl urea, hydantoin DMDM, ethylparaben,imidazolidinyl urea, iodopropynyl butylcarbamate, isobutylparaben,methylparaben, methylchloroisothiazolinone, phenoxyethanol,propylparaben, sodium benzoate, or mixtures thereof.

In yet another embodiment the peptide composition for hair treatment maycomprise at least one thickener selected from the following list:stearate, ISOSTEARATE, myristate, laurate, aluminum palmitate, glycoldistearate, hydrogenated castor oil, hydroxystearate oil hydrogenatedcastor oil, castor oil didrogenado isostearate, hydrogenated castor oilstearate, PEG-8 hydrogenated castor esters, PEG-150 distearate, ormixtures thereof.

In one embodiment, the peptide composition for hair treatment maycomprise at least one naturally selected polymer derived from thefollowing list: carboxymethyl hydroxyethyl cellulose, carboxymethylhydroxypropyl guar, cellulose, ethyl cellulose, hydroxybutyl methylcellulose, hydroxyethylcellulose, hydroxymethylcellulose,laurilpoliglicose, or its mixtures.

In another embodiment, the peptide composition for hair treatment maycomprise at least one naturally derived humectant selected from thefollowing list: 1,2,6 hexanetriol, dipropylene glycol, glycerin,hexylene glycol, panthenol, fitantriol, propylene glycol, sodium PCA,sorbitol, triethylene glycol, sorbitol dioleate, glucose, fructose,polydextrose, PCA potassium, hydrogenated honey, hyaluronic acid,inositol, wax hexanediol bee wax, hexanetriol bee, hydrolyzed elastin,hydrolyzed collagen, hydrolyzed silk, hydrolyzed keratin, erythritol,capryl glycol, Isoceteth-(3-10, 20, 30) Isolaureth-(3-10, 20, 30)Laneth-(5-50), Laureth-(I-30) Esteareto-(4-20) Trideceth-(5-50), ormixtures thereof.

In one embodiment, the peptide composition for hair treatment maycomprise at least one naturally derived cationic polymer selected fromthe following list: Polyquaternium-10, Polyquaternium-7,Polyquaternium-LLM guar hydroxypropyltrimonium chloride, or mixturesthereof.

In another embodiment, the peptide composition for hair treatment maycomprise at least one silicone selected from the following list:amodimethicone, amodimethicone, trideceth-12, cetrimonium mix chloridebehenoxi, dimethicone, cetearyl meticona, cetyl dimethicone,cyclomethicone, ciclopentassiloxano, dimethicone, dimethicone copolyol,dimethiconol, hydroxypropyl hydrolyzed wheat protein polysiloxaneestearoxi dimethicone, stearyl dimethicone, trimetilssililamodimeticona,laurel meticona copolyol, or mixtures thereof.

In yet another embodiment, the peptide composition for hair treatmentmay comprise at least one organic oil selected from the following list:mineral oil, paraffin, petrolatum.

In one embodiment, the peptide composition for hair treatment maycomprise at least one from the following list protein selected from:cocodimónio hydroxypropyl hydrolyzed casein, cocodimónio hydroxypropylhydrolyzed collagen, cocodimónio hydroxypropyl hydrolyzed keratin,hydroxypropyl cocodimónio rice protein hydrolyzed silk hydroxypropylcocodimónio hydrolyzed soy hydroxypropyl cocodimónio hydrolyzedhydroxypropyl cocodimónio hydrolyzed wheat protein, hydroxypropylcocodimónio silk amino acids, hydrolyzed collagen cocoyl, cocoylhydrolyzed keratin, hydrolyzed keratin, hydrolyzed oat protein,hydrolyzed silk, hydrolyzed silk protein, hydrolyzed soy protein,hydrolyzed wheat protein, keratin, collagen hydrolyzate potassiumcocoyl, TEA-cocoyl hydrolyzed collagen, TEA-cocoyl hydrolyzed soyprotein, or mixtures thereof.

In another embodiment, the peptide composition for hair treatment maycomprise at least one vitamin selected from the following list: retinol,retinyl palmitate, tocopherol acetate, or mixtures thereof.

In yet another embodiment, the peptide composition for hair treatmentmay comprise at least one emollient ester selected from the followinglist: butyl myristate, butyl stearate, C12-15 alkyl benzoate, caprylictriglyceride/capric triglyceride, cetyl octanoate, cetyl stearate,cetearyl stearate, decyl oleate, isostearate dimethyl lauramine,glycerine stearate, glycerine adipate, glyceryl arachidate, glycerinarachidonate, glycerol behenate, glyceryl caprate, glyceryl caprylate,citrate/lactate/linoleate/oleate, glycerin, glyceryl cocoate, glyceryldiaraquidato, glycerin dibehenate, glycerin dierucato, glycerindihidroxiesterato, glyceryl diisopalmitato, glyceryl diisostearate,glyceryl dilaurate, glyceryl dilinoleate, glyceryl dimyristate, glyceryldioleate, dipalmitate glycerin, glycerin dipalmitoleato, dirricinoleatoglycerin, glycerin distearate, erucate glycerin, glycol stearate,stearate of isocetil myristate, isopropyl palmitate, isopropyl,isopropyl stearate, isostearyl stearate, octilpalmitato, octilestearato,propylene glycol dicaprylate/dicaprate, sorbitan benzoate, sorbitancaprylate, sorbitan isostearate, sorbitan laurate, sorbitan tristearate,stearyl stearate, tocopheryl linoleate, or mixtures thereof.

In one embodiment, the peptide composition for hair treatment maycomprise at least one alkanolamide selected from the following list:acetamide MEA, cocamide DEA, cocamide MEA, lactamide MEA, lauramide DEA,lauramide DEA, propylene glycol, lauramide MEA, lecitinamida DEA,linoleamide DEA, linoleamide MEA, linoleamide MIPA, myristamide DEA,myristamide MEA, myristamide MIPA, oleamide DEA, oleamide DEA, oleamideMEA, oleamide MIPA, soybean amide DEA, stearamide MEA, and mixturesthereof.

In another embodiment, the peptide composition for hair treatment maycomprise at least one amine selected from the following list:dimethylamine behentamidopropil, dimethylamine cocamidopropyl,isoestearamidopropil dimethylamine, lauramidopropyl dimethylamine,miristamidopropil dimethylamine, oleamidopropil dimethylamine,dimethylamine palmitamidopropil, stearamidopropyl dimethylamine ormixtures thereof.

In yet another embodiment, the peptide composition for hair treatmentmay comprise at least one pH adjusting compound selected from thefollowing list: ascorbic acid, citric acid, sodium hydroxide,triethanolamine, or mixtures thereof. [0044] In one embodiment, thepeptide composition for hair treatment may comprise at least oneselected from the following list salt: calcium chloride, magnesiumchloride, magnesium sulfate, potassium chloride, potassium sulfate,sodium chloride, or mixtures thereof.

In another embodiment, the peptide composition for hair treatment maycomprise at least one selected aliphatic alcohol from the followinglist: behenyl alcohol, cetearyl alcohol, cetyl alcohol, isocetylalcohol, isostearyl alcohol, lauryl alcohol, myristyl alcohol, stearyl,C30-50 alcohols, lanolin alcohol, or mixtures thereof.

In yet another embodiment, the peptide composition for hair treatmentmay comprise at least one UV filter selected from the following list:benzophenone (2, 3, 4, 5, 6, 7, 8, 9, or 10), benzyl salicylate,benzylidenecamphor sulfonic acid, bornelone, ethyl cinnamate, ethylhexylmethoxycinnamate (octyl methoxycinnamate), octoxynol -40, -20, octylmethoxycinnamate, octyl salicylate, oxybenzone, phenyl ketone, PEG-25PABA, benzylidene poliacrilamidometil camphor, or mixtures thereof.

In one embodiment, the peptide composition for hair treatment maycomprise at least one selected natural oil the following list: coconutoil, jojoba oil, olive oil, palm oil, safflower oil, sesame seed oil,shea butter, sweet almond oil, wheat germ oil, or mixtures thereof.

In another embodiment, the peptide composition for hair treatment maycomprise at least one amine oxide selected from the following list:cocamine, lauramine oxide, or mixtures thereof.

In yet another embodiment, the peptide composition for hair treatmentmay comprise at least one chelator selected from the following list:diisopropyl oxalate, disodium EDTA, disodium EDTA copper, HEDTA, oxalicacid, potassium citrate, sodium oxalate, TEA-EDTA, tetrasodium EDTA,trisodium EDTA, trisodium HEDTA, or mixtures thereof. [0050] In oneembodiment, the peptide composition for hair treatment may comprise atleast one selected fatty acid of the following list: ariquidónico acid,capric acid, coconut fatty acid, lauric acid, linoleic acid, linolenicacid, myristic acid, palmitic acid, pantothenic acid, stearic acid,caproic acid, carboxylic acid Capryleth-(4, 6, 9), isostearic acid, ormixtures thereof.

In another embodiment, the peptide composition for hair treatment maycomprise at least one antimicrobial/antibacterial selected from thefollowing list: glyoxal, triclosan, or mixtures thereof.

In yet another embodiment, the peptide composition for hair treatmentmay comprise at least one PEG-modified materials selected from thefollowing list: PEG-150 in pentaeritirtil tetrastearate, PEG-2distearate, -3, -4, -6, -8, -12, -20, -32, -50, -150, -175, PEG-10castor oil, PEG-10 cocamine, PEG-10 cocoate, PEG-10 coconut oil, PEG-10glyceryl oleate esters, PEG-10 glyceryl stearate, PEG-10 hydrogenatedlanolin, PEG-10 hydrogenated tallow amine, thioether isolauril PEG-10,PEG-10 isostearate, lanolate PEG-10, PEG-10 lanolin, PEG-10 laurate,PEG-10 oleate, PEG-10 olive glycerides, PEG-10 laurate, polyglyceryl-2,propylene glycol PEG-10, PEG-10 sorbitan laurate, PEG-10 soya sterol,PEG-10 soyamine, stearamine PEG-10, PEG-10 stearate, PEG-10 chloridestearyl benzónio, PEG-10 tallate, PEG-10 tallow aminopropylamine,PEG-100, PEG-100 castor oil, PEG-100 castor oil hydrogenated LanolinPEG-100, PEG-100 stearate, PEG-40 hydrogenated castor oil, PEG-60,PEG-55 distearate, propylene glycol, or mixtures thereof.

In one embodiment, the peptide composition for hair treatment maycomprise a polymer selected in the following list: carbopol, copolymerdodecanedioic acid/cetearyl alcohol/glycol, hydrogenated C6-14 olefinpolymers, hydrogenated ethylene/propylene/styrene: polyacrylic acid,polymethyl methacrylate polymer, polyvinyl acetate, polyvinyl alcohol,PPG, PPG-25-Laureth-25, PPG-5 pentaeritiritil ether,PPG-75-PEG-300-hexylene glycol, polyvinylpyrrolidone, copolymerpolyvinylpyrrolidone/vinyl acetate, sodium carbopol, TEA, carbopol,poloxamer (100-407) poloaxamina, poliacrilamidometilpropano sulfonicacid, polyethylene terephthalate, or mixtures thereof.

In another embodiment, the peptide composition for hair treatment maycomprise at least one antistatic agent selected from the following list:ethosulfate amidopropyl ethyldimonium, amidopropyl ethyldimoniumlactate, cocamidopropyl ethosulfate ethyldimonium, cocamidopropyllactate ethyldimonium, lauramidopropyl ethosulfate ethyldimonium,lauramidopropyl ethyldimonium lactate, linoleamidopropil ethyldimoniumethosulfate, lactate linoleamidopropil ethyldimonium, miristamidopropilethyldimonium ethosulfate, lactate miristamidopropil ethyldimonium,oleamidopropil ethyldimonium ethosulfate, lactate ethyldimoniumoleamidopropil, stearamidopropyl ethyldimonium ethosulfate,stearamidopropyl ethyldimonium lactate, or mixtures thereof.

In yet another embodiment, the peptide composition for hair treatmentmay comprise at least one alcohol selected in the following list: SD-40alcohol, witch hazel, isopropanol, or mixtures thereof.

In one embodiment, the peptide composition for hair treatment canfurther comprise fragrances, oils, or mixtures thereof.

In another embodiment, the composition can be used in medicine,veterinary and/or as cosmetics, preferably for treatment by or hair inparticular human or animal, particularly for treating scalp disorders,in particular hair irritation, alopecia areata, hair lichen plan, keloidfolliculitis neck, trichorrhexis gnarled, tricodistrofia, pili torti,tricorrexis invaginata, monllethrix, the Uncombable hair syndrome.

In another embodiment, the composition may further comprise a coloringagent/dye bound to the N or C terminus of said peptide.

In another embodiment, the composition can be used for coloringhair/fur. [0060] Another aspect is the use of the composition describedas strengthening hair or the hair or as permanent fastener and/orsnails.

Further disclosed in this application shampoo, lotion, serum, cream,conditioner, foam, mouthwash, oil, aerosol or mask comprising thecomposition presented in this application also.

The present application relates to a composition for hair carecomprising in whole or in part, one or more peptide sequences of AquisPep1 and Aquis Pep2 for treatment and cosmetics for animal, preferablyhuman hair, chemically pretreated or not. Thus the presence of cysteinein the sequence of the peptides (more than 10%, preferably greater than15%) in combination with a percentage of hydrophobic amino acids ensuresthat the peptides can be set in a more durably on hair, improving longerthe human hair properties such as elasticity, strength andhydrophobicity.

In the present description, the peptide composition described may beapplied to the human hair and in particular to the form of, but notlimited to, an aqueous solution or conventional preparation conditioneror shampoo. It may also be in the form of a lotion, foam, aerosol, gel,mask, implementing formulation with or without subsequent rinsing.

The concentration of peptide to be used depends on variouscharacteristics, such as condition of the hair, the origin and theformulation of the hair care product.

It should be understood that the detailed description and specificexamples are preferred embodiments of the invention indicators, beingprovided only for illustrative character, this not being limited tothese patent applications.

FIGS. 1, 2 and 3 show the binding affinity of keratin to peptide Aquis1, 2 and 3.

As shown in the Figures, Peptide Aquis 1 has the most affinity to hairkeratin, even higher that KP peptide who showed in previous publicationsa penetration to the hair cortex, binding to hair keratin andimprovement of hair mechanical properties from within the hair. Theseresults show that Aquis Pep 1 can lead to stronger hair by penetratingthe hair cortex and binding to hair keratin when applied to the hair ina cosmetic formulation.

The present application describes a composition for hair treatmentcomprising different peptides, which are based on the structure ofkeratin and keratin associated proteins.

The compositions described in this application surprisingly allow thedermo-cosmetic treatment of the animal, including human hair, chemicallypre-treated or not. The composition described in the present inventionby certain specific peptides allows repair damage keratin fibers, thiscan be explained by the high binding capacity of the peptides tokeratin, particularly through disulfide bonds.

The compositions described improved properties and characteristics ofthe /hair, such as elasticity, strength and appearance, repairing anydamage hair/fur.

The identified peptides are peptide sequences that bind to a certainaffinity to the hair. The peptides used in this invention are composedof 11 and 12 amino acids, and consist of a minimum of 2 and a maximum of3 cysteines.

The peptide composition for hair treatment described increasedresistance due to the presence of a cysteine-rich peptide which leads tothe penetration of hair/fur, hair strengthening the resistance/evenafter the washes.

Each peptide may be used together or separately as well as in all orpart of the peptide sequence, the hair cosmetic composition. Eachpeptide sequence containing amino acid residues containing sulfur,specifically cysteine that interact with the hair and allows theformation of intermolecular cross-linking, stabilizing the keratinfiber.

The peptide composition described uses a high content of cysteine inorder to enhance their properties, such as improved elasticity andstrength, reduce potential damage by, improvement and/or alteration ofits characteristics. From the point of view of interactions with thekeratinous fibers, the amino acids are cysteine residues 18% to 25% ofthe total amino acids of the peptide sequence. Additionally, from theviewpoint of the size of peptide sequence number is preferably 11 to 12.

The peptides can be used alone or in combination of the two at variousratio. The concentration of peptide to be used depends on variouscharacteristics, such as condition of the hair, the origin and theformulation of the hair care product. Hair composition of the contentsof the present invention is exemplarily 1—between 0.001% (w/w) byweight.

The peptides of this invention may be prepared using conventionalpeptide synthesis methods well known in the art as well as biotechnologytechnique such as for example but not limited to microorganismsengineering and fermentation.

In addition many companies provide custom peptide synthesis services.

The sequences of the peptides are listed in Table 1.

As an example of the animal, tresses were used virgin human hair. Theterm virgin hair is applied to all of the hair that has never been thesubject or at least 10 years without making any chemical treatment,human hair samples are commercially available, for example in companiesalready above in different in various types of hair such as African,Caucasian and Asian. Optionally, the hair samples can be treated forexample using hydrogen peroxide to decolorize hair techniques necessaryfor example to dye the hair.

In the present invention, the peptides may be applied to the human hairand in particular in the form of, but not limited to, aqueous orconventional preparation conditioner or shampoo. It may also be in theform of a lotion, foam, aerosol, gel, mask, implementing formulationwith or without subsequent rinsing.

This application can be prepared by coupling the peptide with an agentsuch preparations either directly or via an optional spacer.

This coupling interaction can be carried out by covalent or non-covalentbonds such as hydrogen bonds, electrostatic interactions, hydrophobicinteractions or van der Waals interactions. The optional spacer servesto separate the preparation of the peptide agent, assuring that theagent will not interfere with the binding of the peptide to the hair.

The present invention can be understood more clearly and accurately byreading the following examples which are preferred embodimentsindicators of the invention and are provided for illustration in greaterdetail of the present invention without providing any limitation notbeing this patent limited to such applications.

APPLICATION EXAMPLES

The examples that are within the scope of the claims represent differentembodiments of the invention; all the other examples are comparativeexamples.

Example 1 Affinity Binding

Affinity of Aquis peptides with natural hair keratin were tested.Peptides and Keratin sequences tested are shown in FIG. 2. A thirdpeptide was also tested with the sequence GGVCGPSPPCITT known as KPdeveloped by Khairpep as a control. KP has been shown in previous patentand publications to penetrate the hair shaft, bind to keratin andimprove hair mechanical properties. Various concentrations of Keratindissolved in water were manually printed onto the bare gold coated(thickness 47 nm) PlexArray Nanocapture Sensor Chip (Plexera Bioscience,Seattle, Wash., US) at 40% humidity. Each concentration was printed inreplicate, and each spot contained 0.2 uL of Myosin solution. The chipwas incubated In 80% humidity at 4° C. for overnight, and rinsed with10× PBST for 10 min, 1× PBST for 10 min, and deionized water twice for10 min. The chip was then blocked with 5% (w/v) non-fat milk in waterovernight, and washed with 10× PBST for 10 min, 1× PBST for 10 min, anddeionized water twice for 10 min before being dried under a stream ofnitrogen prior to use. SPRi measurements were performed with PlexArrayHT (Plexera Bioscience, Seattle, Wash., US). Collimated light (660 nm)passes through the coupling prism, reflects off the SPR-active goldsurface, and is received the CCD camera. Buffers and samples wereinjected by a non-pulsatile piston pump into the 30 uL flowcell that wasmounted on the coupling prim. Each measurement cycle contained foursteps: washing with PBST running buffer at a constant rate of 2 uL/s toobtain a stable baseline, sample injection at 5 uL/s for binding;surface washing with PBST at 2 uL/s for 300 s, and regeneration with0.5% (v/v) H3PO4 at 2 uL/s for 300 s. All the measurements wereperformed at 4° C. The signal changes after binding and washing (in AU)are recorded as the assay value. Selected protein-grafted regions in theSPR images were analyzed, and the average reflectivity variations of thechosen areas were plotted as a function of time. Real-time bindingsignals were recorded and analyzed by Data Analysis Module (DAM, PlexeraBioscience, Seattle, Wash., US). Kinetic analysis was performed usingBIAevaluation 4.1 software (Biacore, Inc.). Table 2 shows the differencesequences, peptides properties and summary of results. FIGS. 1 to 3 showthe binding affinity to keratin for each peptide tested. The lower theKD value is, the more affinity the peptide has to hair keratin.

TABLE 2 KD Value Hydrophob. in M Affinity Peptide Sequence AA MW (da) plCys % % (10)⁻⁷ ranking Aquis 1 FCGFPSCSTSG 11 1092.2 5.51 18.2 27 3.65 1Aquis 2 CTPPSCCQLHHA 12 1296.49 6.89 25 33 25 3 KP GGVCGPSPPCITT 13 11885.51 15 38 8.14 2 Hair Hair Keratin 202 21069.03 6.58 8.40% 33% KeratinKRTHB1 Basic

Although a preferred embodiment of the invention has been disclosed herefor the purposes of illustration, it should be understood that variouschanges, modifications and substitutions may be incorporated in theembodiment without departing from the spirit of the invention, which isdefined by the claims which follow.

What is claimed is:
 1. A peptide composition for treating hair,comprising: at least one peptide having an 11-12 amino acid size, thefull size of the peptide sequence, including 2-3 cysteine amino acids;and at least one excipient suitable for dermatology use.
 2. Acomposition according to claim 1, wherein said peptides contain apercentage of hydrophobic amino acid(s) not exceeding 60%, preferablyless than 41%.
 3. A composition according to claim 2, comprising atleast one hydrophobic amino acid selected from the following list:phenylalanine, alanine, leucine, methionine, isoleucine, tryptophan,proline, valine, or mixtures thereof.
 4. A composition according toclaim 1, wherein the amount of cysteine amino acids is from 10% to 50%of the total amino acids of the peptide sequence.
 5. A compositionaccording to claim 1, wherein said peptide sequence comprises at leastone from the following list with a degree of homology greater than orequal to 90%: Aquis Pep1, Aquis Pep2 or mixtures thereof.
 6. Acomposition according to claim 5 wherein said peptide sequence comprisesat least one from the following list: Aquis Pep1 and Aquis Pep2, ormixtures thereof.
 7. A composition according to claim 1, wherein saidpeptides comprise at least one of the following list of sequences: AquisPep1, Aquis Pep2
 8. A composition according to claim 1, characterized inthat the peptide concentration range of 0.001%-20% (w/w), preferably0.01-5% (w/w).
 9. A composition according to claim 1, further comprisingat least one excipient selected from the following list: surfactants,emulsifiers, preservatives, thickeners, organic polymers, humectants,silicones, oils, fragrances, vitamins, buffers, antimicrobial agents,antibacterial agents, disinfectants, or mixtures thereof.
 10. Acomposition according to claim 1, further comprising at least oneexcipient selected from the following list: anionic surfactant,amphoteric surfactant, cationic surfactant, nonionic surfactant,emulsifier, preservative, thickener, natural polymer derived, naturallyderived humectant, cationic polymer naturally derived, silicon, organicoil, protein, vitamin, emollient ester alkanolamide, amine, a buffer, anadjuster composed pH, a salt, an aliphatic alcohol, UV-oil, amine oxide,chelate, fatty acid, an agent antimicrobial/antibacterial, a PEGmaterial, a polymer, an antistatic agent, alcohol, or mixtures thereof.11. A composition according to claim 10, comprising at least onesurfactant selected from the following list: anionic surfactant,amphoteric surfactant, cationic surfactant, nonionic surfactant.
 12. Acomposition according to claim 1, comprising at least one compoundselected from the following list: emulsifier, preservative, thickener,natural polymer derivative, humectant naturally derived, naturallyderived cationic polymer, silicone, protein, vitamin, emollient esteralkanolamide, amino, pH adjusting compound, a salt, an aliphaticalcohol, UV-oil, amine oxide, chelate, fatty acid, PEG material,polymer, antistatic agent, alcohol, or mixtures thereof.
 13. Acomposition according to claim 1 further comprising fragrances, oils, ormixtures thereof.
 14. A composition according to claim 1, furthercomprising a coloring agent/dye bound to the N or C terminus of saidpeptide.
 15. A composition according to claim 1 for use in medicineand/or veterinary medicine treatments.
 16. Composition according toclaim 1 for use in hair treatment.
 17. Composition according to claim 1for use in treating diseases of the scalp hair in particular irritation,alopecia areata, hair flat lichen, keloid folliculitis neck,trichorrexis nodosa, tricodistrofia, Pili Torti, tricorrexis invaginata,monilethrix syndrome of Uncombable hair.
 18. A composition according toclaim 1 for use in cosmetics.
 19. A composition according to claim 1 foruse as a permanent fastener and/or snail.
 20. A composition according toclaim 1 for use as a hair coloring method.
 21. A composition accordingto claim 1 used in a shampoo, lotion, serum, cream, conditioner, foam,mouthwash, oil, aerosol or mask.
 22. A peptide composition, comprising:at least one peptide having an 11-12 amino acid size, the full size ofthe peptide sequence, including 2-3 cystine amino acids; and at leastone excipient for the at least one peptide.